{"@context":"https://schema.org","@type":"Dataset","@id":"https://zipradar.org/topic/deed-activity/57104/","name":"Deed activity for ZIP 57104 — Sioux Falls (East), SD","description":"Deed activity data for ZIP 57104 (Sioux Falls (East), South Dakota), sourced from County recorders.","topic":{"slug":"deed-activity","label":"Deed activity","source":"County recorders","sourceUrl":"https://zipradar.org/methodology/","refreshCadence":"Daily at the county recorder","summary":"Not on zipradar yet. The plan is ZIP-level counts of deeds filed over the last 30, 90 and 365 days, never names or signatures. Until then, the county recorder's portal is the place to look.","limitations":"Top-50 metros covered at launch. Many smaller counties require subscription or paid access; zipradar links to the recorder portal without caching personal data."},"place":{"zip":"57104","city":"Sioux Falls (East)","state":"SD","stateFull":"South Dakota","county":"Minnehaha County","countySlug":"minnehaha-county","geo":{"latitude":43.5435,"longitude":-96.6863}},"stateContext":{"topConcern":"Radon Zone 1, agricultural water, tornadoes","narrative":"South Dakota is uniformly Zone 1 radon. Agricultural runoff drives EPA SDWIS nitrate compliance pressure in small rural systems. Tornado risk peaks April-June."},"radonZone":null,"airQuality":null,"waterQuality":null,"datePublished":"2026-04-24","dateModified":"2026-09-24","canonicalUrl":"https://zipradar.org/topic/deed-activity/57104/","zipDashboardUrl":"https://zipradar.org/zip/57104/","zipDashboardApiUrl":"https://zipradar.org/api/zip/57104/","primarySourceUrl":"https://zipradar.org/methodology/","license":{"content":"CC-BY-4.0","attribution":"zipradar.org — https://zipradar.org/topic/deed-activity/57104/"}}